Home / 55,228.48-76,218-31,354.72

Finding the Fourth Proportional to 55,228.48, 76,218 and 31,354.72

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Solution

The fourth proportional to 55,228.48, 76,218 and 31,354.72 is: 43,271.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,228.48 : 76,218 = 31,354.72 : x
  2. Step 2: Convert to fraction form
    55,228.48/76,218 = 31,354.72/x
  3. Step 3: Cross multiply
    55,228.48x = 76,218 × 31,354.72
  4. Step 4: Simplify right side
    55,228.48x = 2,389,794,048.96
  5. Step 5: Solve for x
    x = 2,389,794,048.96/55,228.48
  6. Step 6: Final answer
    x = 43,271.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.